Narayana Pillai, P. K. (1990). Vyakaranapravesika (m). State Institute of Languages.
Chicago Edition CitationNarayana Pillai, P K. Vyakaranapravesika (m). TVPM: State Institute of Languages, 1990.
Deismireacht MLANarayana Pillai, P K. Vyakaranapravesika (m). State Institute of Languages, 1990.
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